<!DOCTYPE html>
<body>
<ol>
  <li value=1>One
  <li value=5>Five
    <ol>
      <li value=31>Thirty-one
      <li  value=32>Thirty-two
        <ol reversed>
          <li  value=4>Four
          <li  value=3>Three
          <li  value=2>Two
          <li  value=1>One
        </ol>
      <li  value=33>Thirty-three
    </ol>
  <li  value=6>Six
</ol>
</body>
